CN111664964A - Gas temperature and pressure integrated sensor - Google Patents
Gas temperature and pressure integrated sensor Download PDFInfo
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- CN111664964A CN111664964A CN202010531487.1A CN202010531487A CN111664964A CN 111664964 A CN111664964 A CN 111664964A CN 202010531487 A CN202010531487 A CN 202010531487A CN 111664964 A CN111664964 A CN 111664964A
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- temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
- G01K1/146—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations arrangements for moving thermometers to or from a measuring position
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0672—Leakage or rupture protection or detection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of pressure sensors, and discloses a gas temperature and pressure integrated sensor, which comprises a temperature sensitive element, a pressure sensitive element and a sensor base, and is characterized in that: the pressure sensitive element is positioned in the sensor base, and the top end of the sensor base is connected with a cover plate; the bottom fixedly connected with connecting portion of sensor base, set up first mounting groove in the connecting portion, be equipped with the flexible subassembly of being connected with temperature sensitive element in the first mounting groove. This integrative sensor of gaseous warm-pressing uses through the cooperation of electromagnet piece and permanent magnet piece, and the magnetic force that utilizes the electromagnet piece to produce repels with the permanent magnet piece mutually, makes the permanent magnet piece drive the pipe and moves down, and then makes the temperature-sensitive component move down, sees off connecting portion, and when not using, the electromagnet piece outage, first spring make the temperature-sensitive component retract to it is scalable to make the temperature-sensitive component, is located the center of pipeline, improves and detects the precision.
Description
Technical Field
The invention relates to the technical field of pressure sensors, in particular to a gas temperature and pressure integrated sensor.
Background
The hydrogen is called three new energy sources together with solar energy and nuclear energy due to the advantages of high combustion efficiency, no pollution of products and the like, and the hydrogen is widely applied to the fields of aviation, power and the like as a new energy source; however, hydrogen molecules are very small, and are easy to leak in the processes of production, storage, transportation and use, and because hydrogen is not beneficial to breathing, colorless and tasteless, and cannot be detected by human nose, and the ignition point is only 585 ℃, the content of air is within the range of 4% -75%, and explosion happens when exposed fire occurs, the temperature and pressure of the hydrogen must be detected in the use process.
The sensor that has simultaneous detection gas temperature and pressure among the prior art, in the in-process of using, because it installs on the pipeline, the one side that is close to the pipe wall receives the influence of temperature easily, can not carry out the flexible of probe, leads to the testing result inaccuracy to remaining air influences the pressure value that detects in the sensor, so provides a gaseous temperature and pressure integrative sensor and solves above-mentioned problem that proposes.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a gas temperature and pressure integrated sensor which has the advantages of accurate detection and the like, and solves the problems that in the prior art, the sensor which can simultaneously detect the gas temperature and the gas pressure is arranged on a pipeline, one side close to the pipeline wall is easily influenced by the temperature and cannot stretch or contract a probe in the using process, so that the detection result is inaccurate, and the detection value is influenced by the residual air in the sensor.
(II) technical scheme
In order to achieve the purpose of accurate detection, the invention provides the following technical scheme: a gas temperature and pressure integrated sensor comprises a temperature sensitive element, a pressure sensitive element and a sensor base, wherein the pressure sensitive element is positioned in the sensor base, and the top end of the sensor base is connected with a cover plate;
the bottom end of the sensor base is fixedly connected with a connecting part, a first mounting groove is formed in the connecting part, a telescopic assembly connected with the temperature sensitive element is arranged in the first mounting groove, and the telescopic assembly is used for driving the temperature sensitive element to stretch and retract;
pressure grooves are arranged in the connecting part and the sensor base and used for enabling the detected air pressure to act on the pressure sensitive element;
and the sensor base is also provided with a pressure relief device for exhausting residual air in the pressure tank.
Preferably, the telescopic assembly comprises an electromagnet block and a permanent magnet block which are sequentially distributed from top to bottom, and the electromagnet block is positioned at the top end of the first mounting groove; the left side and the right side of the permanent magnet block are fixedly connected with first springs, the tail ends of the first springs are fixedly connected to the groove wall of the first mounting groove, and a circular tube connected with the temperature sensitive element is arranged at the center of the permanent magnet block.
Preferably, a first wire guide groove is formed in the connecting portion, the top of the electromagnet block penetrates through the first mounting groove and extends into the first wire guide groove, a sealing plate used for sealing the electromagnet block is arranged in the first wire guide groove, and glass cement is filled between the sealing plate and the sealing electromagnet block.
Preferably, a second wire groove communicated with the first wire groove is arranged in the sensor base.
Preferably, a winding wheel is further arranged in the first mounting groove, and a lead connected with the temperature sensitive element is wound on the winding wheel.
Preferably, a movable groove and a second exhaust groove are arranged in the pressure relief device, and the second exhaust groove is communicated with the movable groove; and a second spring and a movable plug are arranged in the movable groove, and a rubber round block is connected to the movable plug.
Preferably, a second spring and a movable plug are arranged in the movable groove, a rubber round block matched with the second exhaust groove is connected to the movable plug, and the rubber round block is used for sealing the second exhaust groove.
Preferably, still be equipped with in the sensor base with the first exhaust groove of pressure tank intercommunication, first exhaust groove and second exhaust groove intercommunication.
Preferably, the bottom of the connecting part is also provided with a thread for installation.
Preferably, the cover plate is provided with a joint, and the joint is electrically connected with the temperature sensitive element and the pressure sensitive element.
(III) advantageous effects
Compared with the prior art, the invention provides a gas temperature and pressure integrated sensor, which has the following beneficial effects:
1. this integrative sensor of gaseous warm-pressing uses through the cooperation of electromagnet piece and permanent magnet piece, and the magnetic force that utilizes the electromagnet piece to produce repels with the permanent magnet piece mutually, makes the permanent magnet piece drive the pipe and moves down, and then makes the temperature-sensitive component move down, sees off connecting portion, and when not using, the electromagnet piece outage, first spring make the temperature-sensitive component retract to it is scalable to make the temperature-sensitive component, is located the center of pipeline, improves and detects the precision.
2. This integrative sensor of gaseous warm-pressing, through rubber disk and the second air discharge duct phase-match on the activity stopper, sealed the second air discharge duct, during the exhaust, press the activity stopper, rubber disk and second air discharge duct separation, unnecessary air is discharged from the second air discharge duct in the pressure tank to improve and detect the precision, avoid residual air's influence.
3. This integrative sensor of gaseous warm-pressing through the use of rolling up the wheel, twines the wire, and at the in-process that the permanent magnet iron piece descends, the rolling up the wheel rotates, avoids the wire to be dragged, improves life.
Drawings
Fig. 1 is a schematic view of an overall structure of a gas temperature and pressure integrated sensor according to the present invention.
Fig. 2 is a schematic diagram of a half-section structure of a gas temperature and pressure integrated sensor according to the present invention.
FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention.
FIG. 4 is an enlarged view of the invention at B of FIG. 2.
In the figure: the sensor comprises a cover plate 1, a connector 101, a sensor base 2, a second wire groove 201, a first exhaust groove 202, a connecting part 3, a thread 4, a pressure relief device 5, a movable plug 501, a second spring 502, a movable groove 503, a rubber round block 504, a second exhaust groove 505, a pressure groove 6, a first mounting groove 7, a first spring 8, a permanent magnet block 9, a round pipe 10, a temperature sensitive element 11, a winding wheel 12, an electromagnet block 13, a first wire groove 14, a sealing plate 15 and a pressure sensitive element 16.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a gas temperature and pressure integrated sensor includes a sensor base 2, a pressure sensing element 16 is installed inside the sensor base 2, a cover plate 1 is sealed at the top end of the sensor base 2, and a connecting part 3 is connected to the bottom end of the sensor base 2;
a first mounting groove 7 is formed in the connecting part 3, a telescopic component connected with the temperature sensitive element 11 is arranged in the first mounting groove 7, the telescopic component comprises an electromagnet block 13 and a permanent magnet block 9 which are sequentially distributed from top to bottom, and the electromagnet block 13 is fixedly mounted at the top end of the first mounting groove 7; the left side and the right side of the permanent magnet block 9 are fixedly connected with first springs 8, one ends, far away from the permanent magnet block 9, of the first springs 8 are fixedly connected to the groove wall of the first mounting groove 7, so that the positions of the first springs 8 are fixed, the first springs 8 are compressed in the process that the permanent magnet block 9 moves downwards and can also generate retraction elastic force, and a circular tube 10 connected with a temperature sensitive element 11 is arranged in the center of the permanent magnet block 9 and used for penetrating and placing a lead, so that the temperature sensitive element 11 is driven by a telescopic assembly to stretch; be equipped with first metallic channel 14 in connecting portion 3, the inside that first mounting groove 7 and extend to first metallic channel 14 is run through at the top of electromagnetism iron piece 13, is equipped with shrouding 15 that is used for sealed electromagnetism iron piece 13 in the first metallic channel 14, and it has glass to glue to fill between shrouding 15 and the sealed electromagnetism iron piece 13, seals electromagnetism iron piece 13, guarantees the gas tightness of whole device. A second wire groove 201 communicated with the first wire groove 14 is arranged in the sensor base 2, so that the wires can be led out conveniently, and the wires can be arranged in order; a rolling wheel 12 capable of rotating is further arranged in the first mounting groove 7, and a lead connected with the temperature sensitive element 11 is wound on the rolling wheel 12, so that the lead is prolonged in the process that the temperature sensitive element 11 moves downwards, and the phenomenon that the lead is pulled to influence the service life is avoided;
the connecting part 3 and the sensor base 2 are internally provided with pressure grooves 6 for leading the detected air pressure to act on the pressure sensitive element 16; the sensor base 2 is also provided with a pressure relief device 5 for exhausting air remained in the pressure groove 6, a movable groove 503 and a second exhaust groove 505 are arranged in the pressure relief device 5, and the second exhaust groove 505 is communicated with the movable groove 503; a second spring 502 and a movable plug 501 are arranged in the movable groove 503, the movable plug 501 is connected with a rubber round block 504, the movable groove 503 is internally provided with the second spring 502 and the movable plug 501, the movable plug 501 is connected with the rubber round block 504 matched with the second exhaust groove 505, the rubber round block 504 is used for sealing the second exhaust groove 505, the sensor base 2 is also internally provided with a first exhaust groove 202 communicated with the pressure groove 6, the first exhaust groove 202 is communicated with the second exhaust groove 505, the movable plug 501 is pressed to separate the rubber round block 504 from the second exhaust groove 505, residual air is exhausted by the pressure in the pressure groove 6, and then the second spring 502 of the movable plug 501 is released to connect the rubber round block 504 with the second exhaust groove 505 to form interference fit, so that the sealing performance of the sensor base is ensured;
the bottom of the connecting portion 3 is further provided with a thread 4 for installation, installation on a pipeline is facilitated, the outer side of the connecting portion 3 is further provided with a hexagonal square block, disassembly and installation are facilitated, the cover plate 1 is provided with the joint 101, the joint 101 is electrically connected with the temperature sensitive element 11, the pressure sensitive element 16 and the electromagnet block 13, leads of the temperature sensitive element 11, the pressure sensitive element 16 and the electromagnet block 13 are concentrated, a plurality of openings are not needed, and space and machining difficulty are saved.
When in use:
(1) the connecting part 3 is connected with the pipeline through the thread 4, then the movable plug 501 is pressed to separate the rubber round block 504 from the second exhaust groove 505, the pressure in the pressure groove 6 exhausts the residual air from the second exhaust groove 505, and then the second spring 502 of the movable plug 501 is loosened to connect the rubber round block 504 with the second exhaust groove 505, so that the interference fit is formed.
(2) The electromagnet block 13 generates magnetic force to push the permanent magnet block 9 to move downwards, the first spring 8 is compressed, and the circular tube 10 connected with the permanent magnet block 9 drives the temperature sensitive element 11 to move downwards to extend out of the connecting part 3 for detection.
In summary, the gas temperature and pressure integrated sensor uses the electromagnet block 13 and the permanent magnet block 9 in a matching manner, the magnetic force generated by the electromagnet block 13 is repelled by the permanent magnet block 9, so that the permanent magnet block 9 drives the circular tube 8 to move downwards, the temperature sensitive element 11 moves downwards and is sent out of the connecting part, when the gas temperature and pressure integrated sensor is not used, the electromagnet block 13 is powered off, the temperature sensitive element 11 retracts by the first spring 8, and the temperature sensitive element 11 can stretch and retract and is positioned at the center of a pipeline, so that the detection precision is improved; through rubber circle piece 504 and the second air discharge duct 505 phase-match on the activity stopper 501, it is sealed with second air discharge duct 505, when exhausting, press activity stopper 501, rubber circle piece 504 and the separation of second air discharge duct 505, unnecessary air is discharged from second air discharge duct 505 in the overhead gage 6, thereby improve the detection precision, avoid the influence of residual air, the sensor that has the simultaneous detection gas temperature and pressure among the prior art has been solved, in-process when using, because it installs on the pipeline, one side that is close to the pipe wall receives the influence of temperature easily, can not carry out the flexible of probe, lead to the testing result inaccuracy, and remaining air influences the problem of detected value in the sensor.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A gas temperature and pressure integrated sensor comprises a temperature sensitive element (11), a pressure sensitive element (16) and a sensor base (2), and is characterized in that: the pressure sensitive element (16) is positioned in the sensor base (2), and the top end of the sensor base (2) is connected with the cover plate (1);
the bottom end of the sensor base (2) is fixedly connected with a connecting part (3), a first mounting groove (7) is formed in the connecting part (3), a telescopic component connected with the temperature sensitive element (11) is arranged in the first mounting groove (7), and the telescopic component is used for driving the temperature sensitive element (11) to stretch;
the connecting part (3) and the sensor base (2) are internally provided with pressure grooves (6) for enabling the detected air pressure to act on the pressure sensitive element (16);
and the sensor base (2) is also provided with a pressure relief device (5) for removing residual air in the pressure tank (6).
2. The integrated sensor of claim 1, wherein: the telescopic assembly comprises an electromagnet block (13) and a permanent magnet block (9) which are sequentially distributed from top to bottom, and the electromagnet block (13) is positioned at the top end of the first mounting groove (7); the left and right sides fixedly connected with first spring (8) of permanent magnet piece (9), the terminal fixed connection of first spring (8) is on the cell wall of first mounting groove (7), the center of permanent magnet piece (9) is equipped with pipe (10) of being connected with temperature-sensitive element (11).
3. The integrated sensor of claim 2, wherein: the sealing structure is characterized in that a first wire groove (14) is formed in the connecting portion (3), the top of the electromagnet block (13) penetrates through the first mounting groove (7) and extends to the inside of the first wire groove (14), a sealing plate (15) used for sealing the electromagnet block (13) is arranged in the first wire groove (14), and glass cement is filled between the sealing plate (15) and the sealing electromagnet block (13).
4. A gas temperature and pressure integrated sensor according to claim 3, wherein: and a second wire groove (201) communicated with the first wire groove (14) is arranged in the sensor base (2).
5. The integrated sensor of claim 1, wherein: a winding wheel (12) is further arranged in the first mounting groove (7), and a lead connected with the temperature sensitive element (11) is wound on the winding wheel (12).
6. The integrated sensor of claim 1, wherein: a movable groove (503) and a second exhaust groove (505) are arranged in the pressure relief device (5), and the second exhaust groove (505) is communicated with the movable groove (503); a second spring (502) and a movable plug (501) are arranged in the movable groove (503), and a rubber round block (504) is connected to the movable plug (501).
7. The integrated sensor of claim 6, wherein: a second spring (502) and a movable plug (501) are arranged in the movable groove (503), a rubber round block (504) matched with the second exhaust groove (505) is connected to the movable plug (501), and the rubber round block (504) is used for sealing the second exhaust groove (505).
8. The integrated sensor of claim 7, wherein: still be equipped with in sensor base (2) and pressure tank (6) intercommunication first exhaust groove (202), first exhaust groove (202) and second exhaust groove (505) intercommunication.
9. The integrated sensor of claim 1, wherein: the bottom of the connecting part (3) is also provided with a thread (4) for installation.
10. The integrated sensor of claim 1, wherein: the cover plate (1) is provided with a joint (101), and the joint (101) is electrically connected with the temperature sensitive element (11) and the pressure sensitive element (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531487.1A CN111664964A (en) | 2020-06-11 | 2020-06-11 | Gas temperature and pressure integrated sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531487.1A CN111664964A (en) | 2020-06-11 | 2020-06-11 | Gas temperature and pressure integrated sensor |
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| Publication Number | Publication Date |
|---|---|
| CN111664964A true CN111664964A (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010531487.1A Pending CN111664964A (en) | 2020-06-11 | 2020-06-11 | Gas temperature and pressure integrated sensor |
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| CN (1) | CN111664964A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179381A (en) * | 2020-10-10 | 2021-01-05 | 武汉飞恩微电子有限公司 | Combustible gas temperature and pressure sensor and measuring method thereof |
| CN112504347A (en) * | 2020-12-10 | 2021-03-16 | 宁波旭日温压仪表有限公司 | High-reliability temperature pressure gauge with integrated axial structure |
| CN113049124A (en) * | 2021-02-08 | 2021-06-29 | 国网河北省电力有限公司衡水供电分公司 | Wire temperature measuring device |
-
2020
- 2020-06-11 CN CN202010531487.1A patent/CN111664964A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179381A (en) * | 2020-10-10 | 2021-01-05 | 武汉飞恩微电子有限公司 | Combustible gas temperature and pressure sensor and measuring method thereof |
| CN112504347A (en) * | 2020-12-10 | 2021-03-16 | 宁波旭日温压仪表有限公司 | High-reliability temperature pressure gauge with integrated axial structure |
| CN113049124A (en) * | 2021-02-08 | 2021-06-29 | 国网河北省电力有限公司衡水供电分公司 | Wire temperature measuring device |
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